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"# 672 View of truck depot on the Nevada side of the river, near the upper portals of the Diversion Tunnels. The upper Arizona portals are shown across the river in the background. December 13th, 1931.
# 741 A general view, looking downstream from above
the upper portals of the Diversion Tunnels. The dam will be located where the cliff-line on the left meets the river. The Arizona approach of the upper steel suspension bridge is in the fore¬ground. Upper portals of the Diversion Tunnels on both sides are shown. January 1st, 1932.
#717 The downstream portals of Diversion Tunnels 3 and 4 on the Arizona side. January 1st, 1932.
# 668 Prior to the completion of the steel suspension bridge shown in Picture # 741 above, a temporary pile and trestle bridge was erected to enable the removal of excavated rock from the upper portals of the Arizona Diversion Tunnels. December 13th, 1931."

"# 672 View of truck depot on the Nevada side of the river, near the upper portals of the Diversion Tunnels. The upper Arizona portals are shown across the river in the background. December 13th, 1931.
# 741 A general view, looking downstream from above
the upper portals of the Diversion Tunnels. The dam will be located where the cliff-line on the left meets the river. The Arizona approach of the upper steel suspension bridge is in the fore¬ground. Upper portals of the Diversion Tunnels on both sides are shown. January 1st, 1932.
#717 The downstream portals of Diversion Tunnels 3 and 4 on the Arizona side. January 1st, 1932.
# 668 Prior to the completion of the steel suspension bridge shown in Picture # 741 above, a temporary pile and trestle bridge was erected to enable the removal of excavated rock from the upper portals of the Arizona Diversion Tunnels. December 13th, 1931."

"# 672 View of truck depot on the Nevada side of the river, near the upper portals of the Diversion Tunnels. The upper Arizona portals are shown across the river in the background. December 13th, 1931.
# 741 A general view, looking downstream from above
the upper portals of the Diversion Tunnels. The dam will be located where the cliff-line on the left meets the river. The Arizona approach of the upper steel suspension bridge is in the fore¬ground. Upper portals of the Diversion Tunnels on both sides are shown. January 1st, 1932.
#717 The downstream portals of Diversion Tunnels 3 and 4 on the Arizona side. January 1st, 1932.
# 668 Prior to the completion of the steel suspension bridge shown in Picture # 741 above, a temporary pile and trestle bridge was erected to enable the removal of excavated rock from the upper portals of the Arizona Diversion Tunnels. December 13th, 1931."